Continuous heat processing technology of steel wire

A technology of steel wire and process, which is applied in the field of continuous heat treatment process of steel wire, can solve the problems of low production efficiency, high production cost, large inventory, etc., and achieve the effect of tight connection, reduction of production cost and improvement of production efficiency

Active Publication Date: 2011-03-16
JIANGSU SAFETY STEEL WIRE ROPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The intermediate heat treatment uses the intermittent steel wire heat treatment process, that is, heat treatment first, then surface pickling treatment, then surface phosphating treatment, and then surface saponification treatment, but the connection of this steel wire heat treatment process is not ideal, the production efficiency is low, and the process and process There is a large amount of inventory and high production costs; the weight of the heat-treated parts is relatively small, usually less than 200KG / piece, which has a certain impact on the quality of the finished wire rope

Method used

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  • Continuous heat processing technology of steel wire
  • Continuous heat processing technology of steel wire

Examples

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Effect test

Embodiment 1

[0020] Such as figure 1 Shown, a kind of continuous heat treatment process of steel wire, comprises the following steps:

[0021] (1) Furnace heating: the steel wire is unwound through the pay-off frame, and then penetrates into the heat treatment furnace, and in the heating furnace, it is heated in the first stage at 970-990°C, second-stage heating at 950-970°C, three-stage heating at 935-955°C, 920~940℃ soaking section heating, heating time is 2min;

[0022] (2) Lead quenching: the steel wire heated by the heating furnace is penetrated into the lead pool, and the lead quenching is carried out through the molten lead at 545-555 °C, and the lead quenching time is 0.5min;

[0023] (3) Pickling: The lead-hardened steel wire is inserted into the pickling tank, and pickled with hydrochloric acid, and the pickling time is 1.5 minutes;

[0024] (4) Phosphating: the pickled steel wire is penetrated into the phosphating pool, and phosphate is used for phosphating, and the phosphatin...

Embodiment 2

[0028] Such as figure 1 Shown, a kind of continuous heat treatment process of steel wire, comprises the following steps:

[0029] (1) Furnace heating: the steel wire is unwound through the pay-off frame, and then penetrates into the heat treatment furnace, and in the heating furnace, it is heated in the first stage at 970-990°C, second-stage heating at 950-970°C, three-stage heating at 935-955°C, 920~940℃ soaking section heating, heating time is 3min;

[0030] (2) Lead quenching: the steel wire heated by the heating furnace is penetrated into the lead pool, and the lead quenching is carried out through the molten lead at 545-555 °C, and the lead quenching time is 1 minute;

[0031] (3) Pickling: The lead-hardened steel wire is inserted into the pickling tank, and pickled with hydrochloric acid, and the pickling time is 2.5 minutes;

[0032] (4) Phosphating: the pickled steel wire is penetrated into the phosphating pool, and phosphate is used for phosphating, and the phosphat...

Embodiment 3

[0036] Such as figure 1 Shown, a kind of continuous heat treatment process of steel wire, comprises the following steps:

[0037] (1) Furnace heating: the steel wire is unwound through the pay-off frame, and then penetrates into the heat treatment furnace, and in the heating furnace, it is heated in the first stage at 970-990°C, second-stage heating at 950-970°C, three-stage heating at 935-955°C, 920~940℃ soaking section heating, heating time is 2.5min;

[0038] (2) Lead quenching: the steel wire heated by the heating furnace is penetrated into the lead pool, and the lead quenching is carried out through the molten lead at 545-555 °C, and the lead quenching time is 0.7min;

[0039] (3) Pickling: The lead-hardened steel wire is inserted into the pickling tank, and pickled with hydrochloric acid, and the pickling time is 2 minutes;

[0040] (4) Phosphating: the pickled steel wire is penetrated into the phosphating pool, and phosphate is used for phosphating, and the phosphatin...

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Abstract

The invention relates to a continuous heat processing technology of a steel wire, which is characterized in that the steel wire penetrates into a heat processing heating furnace for heating by a pay-off rack, penetrates into a lead pool for lead quenching, penetrates into a pickling tank for pickling, then penetrates into a parkerising pool, penetrates into a saponification pool, penetrates through a drying box and finally is wound up. The continuous heat processing technology of the steel wire in the invention has the advantages that a continuous heat processing line is used, the pickling and parkerising are carried out in a mode of one line, and a steel wire technology for each specification can be adjusted by adjusting speed of the steel wire heat processing, thus reducing production cost and improving production efficiency; and all processing procedures are linked compactly; and weight of parts is improved to reduce joint number in the steel wire so as to improve quality of the steel wire.

Description

technical field [0001] The invention relates to a continuous heat treatment process for steel wire, Background technique [0002] Steel wire is one of the four major types of steel plates, tubes, shapes and wires, and is a reprocessed product made of hot-rolled wire rods through cold drawing. The main process of steel wire production includes raw material selection, iron scale removal, drying, coating treatment, heat treatment, wire drawing, coating treatment, etc. [0003] Heat treatment includes three types: raw material heat treatment, intermediate heat treatment and finished product heat treatment. Intermediate heat treatment is the heat treatment of the semi-finished steel wire, that is, the intermediate wire billet. The main purpose is to eliminate the work hardening produced in the cold drawing process and restore the plasticity of the wire billet to facilitate further drawing. If there is no finished product heat treatment process in the production, the intermediat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F17/00C21D9/56C21D9/64C23C22/07
Inventor 杨岳民周绍兵
Owner JIANGSU SAFETY STEEL WIRE ROPE
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